Ion sources at the Novosibirsk Institute of Nuclear Physics (invited)

Conference · Mon Jan 01 00:00:00 EST 1990 · Review of Scientific Instruments; (USA)

OSTI ID:6908360

Belchenko, Y I; Davydenko, V I; Derevyankin, G E; Dimov, G I; Dudnikov, V G; Morosov, I I; Roslyakov, G V; Schabalin, A L ^[1]

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1. Institute of Nuclear Physics, Siberian Division of the USSR Academy of Sciences, 630090, Novosibirsk, USSR (SU)

A review of investigations in the physics and technology of ion sources, developed in the Institute of Nuclear Physics in Novosibirsk is presented. Distinctive features of physical processes and technical characteristics of plasma sources of gaseous ions, negative ion surface-plasma sources, electrohydrodynamic (liquid metal) ion sources are considered. In original design plasma sources, ion beams with a current of up to 90 A and energies 1--30 keV are formed by four-electrode multislit extraction systems from highly ionized, high brightness plasma flux, generated by an high-current arc discharge with a cold cathode in a small cross-section diaphragmed channel, and directed with a magnetic field of a special configuration. Plasma jet expansion for a very low ion temperature (0.1 eV) production is used. In surface plasma sources, the fluxes of negative ions are produced when electrons are captured from the electrode surface at the electron affinity level of sputtered and reflected particles. A discharge of a special type in a gas-cesium mixture with in a thin plasma layer between the negative ion emitter and emission holes is used. A number of versions of SPS with different types of discharges are considered: SPS which operate in pulse mode with H{sup {minus}} beam current up to 11 A, with current 0.1 A, and high brightness for accelerators, for continuous mode operation. Specific features of physical processes in electrohydrodynamic (EHD) ion emitters are studied and the technology of production of different ions is worked out. The production of ion beams with high brightness from the dielectric melt in the EHD-emission regime is developed.

• OSTI ID: 6908360
• Report Number(s): CONF-890703-; CODEN: RSINA; TRN: 90-013670
• Journal Information: Review of Scientific Instruments; (USA), Vol. 61:1; Conference: International conference on ion sources, Berkeley, CA (USA), 10-14 Jul 1989; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ION SOURCES
DESIGN
LIQUID METALS
PLASMA PRODUCTION
REVIEWS
BORON OXIDES
CATHODES
DEUTERIUM IONS
DIELECTRIC MATERIALS
ELECTRIC FIELDS
EV RANGE 01-10
ION TEMPERATURE
LITHIUM OXIDES
MAGNETIC FIELDS
MASS SPECTRA
PLASMA JETS
USSR
ALKALI METAL COMPOUNDS
ASIA
BORON COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
DOCUMENT TYPES
EASTERN EUROPE
ELECTRODES
ELEMENTS
ENERGY RANGE
EUROPE
EV RANGE
FLUIDS
IONS
LIQUIDS
LITHIUM COMPOUNDS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
SPECTRA
430301* - Particle Accelerators- Ion Sources